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From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
To: Vinod Koul <vkoul@kernel.org>,
	Bjorn Andersson <bjorn.andersson@linaro.org>,
	Rob Herring <robh+dt@kernel.org>
Cc: linux-arm-msm@vger.kernel.org, Andy Gross <agross@kernel.org>,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 6/6] arm64: dts: qcom: sm8250: remove address cells from dsi nodes
Date: Mon, 28 Mar 2022 17:54:07 +0200	[thread overview]
Message-ID: <6325adb9-82f7-e1c0-6293-d91b23362f25@linaro.org> (raw)
In-Reply-To: <20220328143035.519909-7-vkoul@kernel.org>

On 28/03/2022 16:30, Vinod Koul wrote:
> The child of dsi nodes do not have unit address, this causes warnings:
> 
> arch/arm64/boot/dts/qcom/sm8250.dtsi:3249.22-3301.6:
> 	Warning (avoid_unnecessary_addr_size): /soc@0/mdss@ae00000/dsi@ae94000:
> 	unnecessary #address-cells/#size-cells without "ranges" or child "reg" property
> 
> arch/arm64/boot/dts/qcom/sm8250.dtsi:3322.22-3374.6:
> 	Warning (avoid_unnecessary_addr_size): /soc@0/mdss@ae00000/dsi@ae96000:
> 	unnecessary #address-cells/#size-cells without "ranges" or child "reg" property
> 
> So remove #address-cells/#size-cells for dsi nodes.

I think this needs different fix and my review was not correct. MIPI DSI
is a bus, so it can have children with unit addresses.

This DTSI (and several others) should have address/size cells, so
downstream could add easily children (e.g. panel nodes).

However I don't know how to combine it with "ports" not having unit address.

Maybe Rob has some ideas?

Best regards,
Krzysztof

      parent reply	other threads:[~2022-03-28 15:54 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-28 14:30 [PATCH 0/6] arm64: dts: qcom: Get rid of some warnings Vinod Koul
2022-03-28 14:30 ` [PATCH 1/6] arm64: dts: qcom: sm8450: rename interconnect nodes Vinod Koul
2022-03-28 15:07   ` Krzysztof Kozlowski
2022-03-28 17:11     ` Vinod Koul
2022-03-28 14:30 ` [PATCH 2/6] arm64: dts: qcom: sm8350: move qup-opp-tables out of soc node Vinod Koul
2022-03-28 15:08   ` Krzysztof Kozlowski
2022-03-28 14:30 ` [PATCH 3/6] arm64: dts: qcom: sm8250: move qup-opp-table " Vinod Koul
2022-03-28 15:08   ` Krzysztof Kozlowski
2022-03-28 14:30 ` [PATCH 4/6] arm64: dts: qcom: sm8250: move sound node out of soc Vinod Koul
2022-03-28 15:14   ` Krzysztof Kozlowski
2022-03-28 17:14     ` Vinod Koul
2022-03-28 17:16       ` Krzysztof Kozlowski
2022-04-09  0:25       ` Bjorn Andersson
2022-03-28 14:30 ` [PATCH 5/6] arm64: dts: qcom: sm8250: move wcd938x node out of soc node Vinod Koul
2022-03-28 15:21   ` Krzysztof Kozlowski
2022-03-28 17:13     ` Vinod Koul
2022-03-29  8:44       ` Srinivas Kandagatla
2022-03-28 14:30 ` [PATCH 6/6] arm64: dts: qcom: sm8250: remove address cells from dsi nodes Vinod Koul
2022-03-28 15:31   ` Krzysztof Kozlowski
2022-03-28 15:54   ` Krzysztof Kozlowski [this message]

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